For LLMs

Global index

Copy the index URL (site header Copy AI button):

• https://utils.koalarx.com/llms-en.txt

The file lists every topic with links to static .md files.

Per page

On each docs page, use Copy for AI to copy that page's Markdown URL, for example:

• https://utils.koalarx.com/markdown/en/core/kl-string.md

Rules for assistants

1. Do not invent APIs
2. Frontend → operators; backend → prototypes
3. Do not use pipe()
4. Holidays require import '@koalarx/utils/holidays'
5. The same name in core vs operators may differ in return type (primitive vs Kl*)